Advantages Of Liquid Ammonia Pump 1. No Leakage Handles toxic, explosive, expensive, hazardous, fluids without leaking into atmosphere. 2. AIRTIGHT Designed to handle vacuum services or fluids that react to contact with air. 3. NO SHAFT SEAL No mechanical seal. No gland Packing 4. NO EXTERNAL LUBRICATION Pumped fluid provides cooling and lubrication of motor and bearing No lubrication levels to check or maintain. 5. COMPACT DESIGN Motor and pump are single unit-no alignment necessary. No grouting or elaborate foundation